This game is not actually related to amity park, besides having the same people working on it. AFAIK there's no AI being used here at all (in fact, IIRC that was one of the problems that made this team break it off with GZone)
We didn't love AI being used for things, but it was mainly cause I find the AI that GZone uses to not match with the style in the show. He would take my backgrounds I would design, and then filter them through smarter AI that would put shadow grain and help make it look more "rich". Which wasn't too bad, but I also didn't like him drawing black lines on everything, that was never good to me because the show like never uses black lines for backgrounds, black outlines were primarily for characters. So no, we never left cause of AI. We solely left for lack of respectful communication, the same thing he does now but with the fans, we also were all not in love with Amity Park, we felt we were producing a subpar product.
Also, Dark Dimensions is not averse to using AI when need be, but the intent is that we'll always end up replacing it eventually. Our upcoming July 11th update will feature an AI portrait (pictured below actually, fuck it) because we don't have enough time to create a proper stand in. We want to have proper time when developing a character's design so that it's given thought and effort and looks good. But obviously, we'll eventually replace any asset that has AI, that's the goal anyway.